1. Biddle, B.J. "The Integration of Teacher Effectiveness Research." Contemporary Research on Teacher Effectiveness. (Edited by B. J. Biddle and W. J. Ellena.) New York: Holt, Rinehart and Winston, 1964.pp.1-40.
2. Getzels, J.W. , and Jackson, P.W. "The Teacher's Personality and Characteristics." Handbook of Research on Teaching. (Edited by N. L. Gage.) Chicago: Rand McNally , 1963. pp. 506-82.
3. Mitzel, H.E. "Teacher Effectiveness." Encyclopedia of Educational Research. Third edition. (Edited by C. W. Harris.) New York: Macmillan , 1960. pp. 1481-86.